Kriegsmarine sleeve patch, never seen

[m-e-h-t]

Hi, what kind of patch is it?
Thanks for help!

[m-e-h-t]

2

[m-e-h-t]

3

[Kondor]

Nice bullion sleeve officer insignia for the Sperrwaffen. Came as a set, one for each sleeve of the reefer jacket. Here is a set of mine along with a set for the Technical Communications field. Sorry for the blurred, but I just enlarged the section of the photo. Both sets are made of cellon.

[m-e-h-t]

Thanks